Method of making 0.1M ammonium acetate solution
To make 0.1M ammonium acetate solution, the first thing to do is to understand the required medicines and utensils. Drugs need ammonium acetate, and utensils must be balanced, volumetric bottles, beakers, glass rods, distilled water, etc.

First, accurately weigh an appropriate amount of ammonium acetate with a balance. Because the molar mass of ammonium acetate is about 77.08g/mol, if you want to make 1L of 0.1M solution, according to the formula n = cV (n is the amount of substance, c is the amount and concentration of substance, and V is the solution volume), then n (ammonium acetate) = 0.1mol/L × 1L = 0.1mol, and the required ammonium acetate mass m = nM = 0.1mol × 77.08g/mol = 7.708g.

Place the weighed ammonium acetate in a clean beaker, add an appropriate amount of distilled water, and stir slowly with a glass rod to promote its dissolution. Note that the distilled water should not be too much, only enough to dissolve the ammonium acetate.

After the ammonium acetate is completely dissolved, drain the solution carefully along the glass rod and inject it into the appropriate size volumetric bottle. Wash the beaker and glass rod 2-3 times with a small amount of distilled water, and the lotion is also injected into the volumetric bottle to ensure that there is no leakage of solute.

Then add distilled water to the volumetric bottle to 1-2cm below the scale line, and use a rubber head dropper to add water dropwise until the concave liquid level of the solution is tangent to the scale line. Cover the volume bottle and shake it upside down repeatedly to mix the solution evenly. At this point, the preparation of 0.1M ammonium acetate solution is completed.